That feels a bit lenient but it's hard to see how it can be higher - if you say that the death was a predictable outcome of calling the police, then you're effectively saying that the police will predictably shoot innocent people in this sort of situation even when nothing at all is happening; I assume that the prosecution would have to be wary of that sort of implication.

Same for murder... to call it murder, you'd be saying that the police were effectively a hit squad that you could call up for a free assassination of your victim of choice! And while it could be easy to get that impression, I'm sure it's not true, and that nobody would expect it to be true.

Legally, I would have thought that the guy who made the call would have a solid defence against those harder charges in that he would simply have been assuming a degree of basic competence from the police, that they weren't going to do what they actually did.